JPS6086777A - Layer-built secondary battery - Google Patents
Layer-built secondary batteryInfo
- Publication number
- JPS6086777A JPS6086777A JP58194187A JP19418783A JPS6086777A JP S6086777 A JPS6086777 A JP S6086777A JP 58194187 A JP58194187 A JP 58194187A JP 19418783 A JP19418783 A JP 19418783A JP S6086777 A JPS6086777 A JP S6086777A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- conductive
- sheet
- adhesive
- secondary battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011888 foil Substances 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 2
- 210000003771 C cell Anatomy 0.000 abstract 1
- 210000003719 b-lymphocyte Anatomy 0.000 abstract 1
- 210000002325 somatostatin-secreting cell Anatomy 0.000 abstract 1
- 229920005992 thermoplastic resin Polymers 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 5
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 244000292604 Salvia columbariae Species 0.000 description 2
- 235000012377 Salvia columbariae var. columbariae Nutrition 0.000 description 2
- 235000001498 Salvia hispanica Nutrition 0.000 description 2
- 235000014167 chia Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 150000001485 argon Chemical class 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はシート形二次電池に係り、特に積層したセルに
使用して好適な電池に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a sheet-type secondary battery, and particularly to a battery suitable for use in stacked cells.
従来のシートバッテリーは第1図に示した如−く、導電
性グラスナック1の両面に陽極スラリ−5と活性陰極材
料3を付着させ、その間に隔離板4を入れこれら周辺部
を絶縁性フレーム2によって固定し、金属シート6を用
いて真空シールしている(%開昭58−42177号)
。又第2図に示すように、完成されたシートバッテリー
の正(杭用窓部9又は負極用窓部10を除く部分に粘府
剤8を塗布し、接続部材7を用いて積層している(実開
昭58−70669号)。前者は一次11毛池で、真空
シール法により脱気しているだめ、余分な空間を無くす
利点はあるが、高粘性の電解質を使用するので電流密度
が高くとれない欠点がある。後者は完成された単セルバ
ッテリーを積層するので、精面部分で部品がダブルよう
になり、その上接続部材が必要となる。A conventional sheet battery, as shown in Fig. 1, has an anode slurry 5 and an active cathode material 3 adhered to both sides of a conductive glass nug 1, and a separator 4 placed between them, surrounding these parts with an insulating frame. 2 and vacuum-sealed using a metal sheet 6 (%Kaisei No. 58-42177)
. Further, as shown in Fig. 2, a viscous agent 8 is applied to the positive (excluding the pile window 9 or the negative electrode window 10) of the completed sheet battery, and the battery is laminated using the connecting member 7. (Utility Model Application Publication No. 58-70669).The former is a primary 11-cell pond and is degassed using a vacuum sealing method, which has the advantage of eliminating excess space, but since it uses a highly viscous electrolyte, the current density is low. The disadvantage is that it cannot be made high.The latter stacks completed single-cell batteries, so the parts are doubled in the precision part, and additionally, connecting members are required.
その他用6図に示す通シ導電性シート11にエキスバン
ドメタル12をスポット溶接し、そこにポリアセチレン
13を固着してセパレーク−14を挾んでいる。導′6
性シートの周辺部に熱可塑性樹脂15を融着しておき、
それに熱可塑性樹脂シート16を接着させ、それらを融
フhして電解液17を注入している。このi1池はA、
B、C,Dの4セル積層で、外装にアルミ箔18の周辺
部を融着19しているが、セルが大形化するとアルミ箔
18と導電性シート11の密着性が悪くなるなどの欠点
が生じる。For other purposes, an expanded metal 12 is spot welded to a conductive sheet 11 shown in FIG. Guide'6
Thermoplastic resin 15 is fused to the periphery of the adhesive sheet,
A thermoplastic resin sheet 16 is adhered thereto, they are melted, and an electrolytic solution 17 is injected. This i1 pond is A,
The 4 cells B, C, and D are laminated, and the periphery of the aluminum foil 18 is fused 19 to the exterior, but as the cells become larger, the adhesion between the aluminum foil 18 and the conductive sheet 11 deteriorates. A drawback arises.
本発明の目的は、シートバッテリーにおいて、積層化し
て良好な充放電特性を発揮させ得る積層形二次電池を提
供するにある。An object of the present invention is to provide a stacked secondary battery that can be stacked to exhibit good charging and discharging characteristics in a sheet battery.
従来技術の項でも記載した通シ、積層形シートバッテリ
ーが大形になると、導電性シート(第6図の符号11)
と外装のアルミ箔18との密着が悪くなり、部分的に空
隙が生じて接触不良となる欠点が生じてくる。これらを
解消する手段として、前記の間を導電性接着剤で固着し
、内部と外装の一体化を計ったものである。As the conventional sheet battery described in the prior art section becomes larger, the conductive sheet (reference numeral 11 in Fig. 6)
The adhesion between the aluminum foil 18 and the exterior aluminum foil 18 deteriorates, and gaps are formed in some areas, resulting in poor contact. As a means to solve these problems, the space between the two is fixed with a conductive adhesive, and the interior and exterior are integrated.
第3図に示すととく導電性シート11に長さ155、幅
60、厚さ0.051rrnIの5US304を用い、
これに同質の長さ145mm、幅50....の集電体
(エキスバンドメタル)20を導出、性シートの片面又
は両面へスポット溶接した。エキスバンドメタルを溶接
した所以外のq7屯性シートの部分には熱可塑性樹脂シ
ート1Gを融着させた。この熱可塑性樹脂シートは第4
図に示したようにフッ素樹脂シートに熱可塑性樹脂をコ
ートして3層にしている。21は電極活物質である。第
6図のA−1,D−2の導電性シートに融着した熱可塑
性樹脂シートは長さ180咽、幅85、厚さ0.15解
で、C−1に融着した熱可塑性樹脂シートは長さ195
、幅90、厚さ0.15mmである。集電体には粉状ポ
リアセチレン(t、1g)を0.8t/c4の圧力で固
着させた(第4図の符号30)。セパレーター(第6図
の符号14)はポリプロピレン製不織布(厚さ0.1
mm )を2枚ずつ用いた。電解液17は(02H5)
4NBFJ を1 mol/ lの濃度でアセトニトリ
ルに溶かした非水有機電解液を使用した。In particular, as shown in FIG. 3, 5US304 having a length of 155 mm, a width of 60 mm, and a thickness of 0.051 rrnI is used as the conductive sheet 11.
The same material has a length of 145 mm and a width of 50 mm. .. .. .. A current collector (extended metal) 20 was extracted and spot welded to one or both sides of the flexible sheet. A thermoplastic resin sheet 1G was fused to a portion of the q7 thickness sheet other than the area where the expanded metal was welded. This thermoplastic resin sheet
As shown in the figure, a fluororesin sheet is coated with thermoplastic resin to form three layers. 21 is an electrode active material. The thermoplastic resin sheet fused to the conductive sheets A-1 and D-2 in Figure 6 has a length of 180 mm, width of 85 mm, and thickness of 0.15 mm. Sheet length is 195
, width 90mm, thickness 0.15mm. Powdered polyacetylene (t, 1 g) was fixed to the current collector under a pressure of 0.8 t/c4 (reference numeral 30 in FIG. 4). The separator (numeral 14 in Figure 6) is a polypropylene nonwoven fabric (thickness 0.1
mm) were used. Electrolyte 17 is (02H5)
A nonaqueous organic electrolyte in which 4NBFJ was dissolved in acetonitrile at a concentration of 1 mol/l was used.
電池の組み立ては充分脱水したアルゴンガスで満したグ
ローブボックス内で行った。寸ず第6図のAとCセルは
導電性シートの周辺部で融着し、電解液を注入して密封
する。次いでA、CセルとD−2を積層し熱可塑性樹脂
シートを融着して、B、Dに電解液を注入して密封した
。使用した電解液量は全セルで約21mtである。外装
は長さ200順、幅100咽、厚さ0.1瑞のアルミ箔
18で片面の周辺部に熱可塑性樹脂を融着させ、前記4
セル積層のバッテリーを挾んで周辺部を融着させた。完
成したバッテリーの外形は長さ190n!m (Qr’
a 87 mm %厚さ5〜7Bとなり部分的に空隙が
生じている。この電池をXとし外形を第5図に示した。The battery was assembled in a glove box filled with sufficiently dehydrated argon gas. In short, cells A and C in FIG. 6 are fused together at the periphery of the conductive sheet, and an electrolyte is injected to seal them. Next, cells A and C and D-2 were stacked, thermoplastic resin sheets were fused together, and electrolyte was injected into cells B and D to seal them. The amount of electrolyte used was approximately 21 mt for all cells. The exterior is made of aluminum foil 18 with a length of 200 mm, a width of 100 mm, and a thickness of 0.1 mm, with thermoplastic resin fused to the periphery of one side.
A battery with stacked cells was sandwiched and the peripheral parts were fused. The completed battery has a length of 190n! m (Qr'
a 87 mm % thickness is 5 to 7 B, with voids partially occurring. This battery is designated as X and its external shape is shown in FIG.
本発明の電池の内部構造はX電池と同じであるが、両ぢ
;jの・導電性シート(A−1,D−2)に薄く導電性
接着剤を全面に1塗布し、外装の内側に固着させた。こ
れによ!ll屯池電池さは5rrunとなった。接着剤
はエポキシ系樹脂で主剤はシェル化学のEP−828、
硬化剤は味ノ素化学のB−001で、これらを100
: 60 (重量比)の割合に混合するものである。こ
れに導電性をつけるだめ徳力化学研究所製シルベス)T
CG−1(Ag粉1μm)を前記接着剤に50体積(V
OL )%添加して混合した。この導電性接着剤をy
接着剤とする。別に日本イージーKK社のケッチェンブ
ラックECの炭素粉末を、前記接着剤に15wt%混合
した導電性接着剤を2接着剤とする。y及び2接着剤の
抵抗は10−4〜10−3Ω/曽と102〜10oΩ/
、であった。y、!:zの接着剤をそれぞれのバッテリ
ーに前記の通り塗布し、常温で24時間安置した電池を
X電池及びZ 7(j池とする。第7図はY、Z、X電
池を電流密度5mA/cnl、ドーピング4 mol、
、%で充放電をおこなった1oザイクル時の電圧曲線で
ある。充電終了龜圧は本発明のX電池は10.75V、
Z電池11.IV、従来のX電池は11.6Vと高くな
り、放電でil″ll:x、 z、 yの順に電圧低下
が早い。クーロン効率は〔放電率/充電率X100)で
めた。充放電サイクルとクーロン効率を調べたのが第8
図である。これによるとY、Z、X電池とも、4〜5ザ
イクルnでクーロン効率が上昇し、その後はぼ平行状1
鶏になっている。本発明のX電池のクーロン効率ハ85
弼、Z電池83.5ヂ、従来のX′区池は79チであっ
た。The internal structure of the battery of the present invention is the same as battery It was fixed to. This is it! The capacity of the 11-ton pond battery was 5 rrun. The adhesive is epoxy resin, and the main agent is Shell Chemical's EP-828.
The curing agent is Ajinomoto Chemical's B-001, and these are 100%
: 60 (weight ratio). To add conductivity to this, Tokuriki Kagaku Kenkyusho Silves) T
CG-1 (Ag powder 1 μm) was added to the adhesive by 50 volumes (V
OL)% was added and mixed. This conductive adhesive
Use as adhesive. Separately, a conductive adhesive prepared by mixing 15 wt % of Ketjen Black EC carbon powder manufactured by Japan Easy KK Co., Ltd. with the above adhesive was used as the second adhesive. The resistance of y and 2 adhesive is 10-4~10-3Ω/so and 102~10oΩ/
,Met. Y-! :The adhesive of Z was applied to each battery as described above, and the batteries were left for 24 hours at room temperature. cnl, doping 4 mol,
, % is a voltage curve during 1o cycles when charging and discharging are performed at . The charging end pressure is 10.75V for the X battery of the present invention.
Z battery 11. IV, the conventional X battery has a high voltage of 11.6V, and the voltage decreases quickly in the order of x, z, and y during discharge.The coulombic efficiency is determined by [discharge rate/charge rate x 100].Charge/discharge cycle The eighth study investigated Coulomb efficiency.
It is a diagram. According to this, the Coulombic efficiency of Y, Z, and X batteries increases after 4 to 5 cycles n, and after that
It's turned into a chicken. Coulombic efficiency of the X battery of the present invention H85
弼、Z battery was 83.5 cm, the conventional X' ward pond was 79 cm.
4電性接着剤を導電性シートと外装間に使用することに
よシ第7図及び第8図から明らかのように、電池抵抗が
減少してクーロン効率が上昇した。As is clear from FIGS. 7 and 8, by using a 4-electroconductive adhesive between the conductive sheet and the exterior, the battery resistance decreased and the Coulombic efficiency increased.
又外形においても電池の厚さが5〜7ff++1だった
のが5rrrmとなシ、薄形にすることができた。Also, in terms of external shape, the thickness of the battery was reduced from 5 to 7 ff++1 to 5 rrrm, making it possible to make it thinner.
以上説明したことから明らかなように、本発明によれば
充放電特性の良好な積層形二次電池を得ることができる
。As is clear from the above explanation, according to the present invention, a stacked secondary battery with good charge and discharge characteristics can be obtained.
箇1図、第2図は従来電池の断面図、第3図は熱可塑性
樹脂シートを導電性シートに融着させた本発明の実施例
を示す平面図 3g 4図は第3図に電極活物質を固着
させた断面図、第5図は従来の電池の外形を示す斜視図
、第6図は第5図のVl−とクーロン効率の関係でラミ
を示す特性図である。
11・・・導電性シート、16・・・熱可塑性樹脂シー
ト、第112]
半2G
1−
\3
茅30
陰1
一〕−
020
〕
ヨ
16
〜11
\20
一7乙
/l
茅50
′事乙口
半70
第3囚
第1頁の続き
■発明者 根本 博幸 日立市
所内
@発明者 遠出 原子 日立市
所内
@発明者 松1)阻子 日立市
所内Figures 1 and 2 are cross-sectional views of conventional batteries, and Figure 3 is a plan view showing an embodiment of the present invention in which a thermoplastic resin sheet is fused to a conductive sheet. FIG. 5 is a cross-sectional view showing the fixed substance, FIG. 5 is a perspective view showing the external shape of a conventional battery, and FIG. 6 is a characteristic diagram showing the relationship between Vl- and Coulombic efficiency in FIG. 11... Conductive sheet, 16... Thermoplastic resin sheet, No. 112] Half 2G 1- \3 Chia 30 Yin 1 - 020] Yo 16 ~ 11 \20 17 Otsu/l Chia 50' Otsuguchihan 70 Continuation of 3rd Prisoner Page 1 ■Inventor Hiroyuki Nemoto Inside Hitachi City @ Inventor Outing Atomic Inside Hitachi City @ Inventor Matsu 1) Seiko Inside Hitachi City
Claims (1)
と外装用金属シートとを4電性接着剤で固着したことを
特徴とする積層形二次電池。 2、特許請求、7)範囲第1項におい、イ脅記導電性接
着剤はエポキシ系樹脂で、これに金属粉末又は炭素粉末
を混合したものであることを特徴とする積層形二次電池
。[Scope of Claims] 1. A stacked secondary battery characterized in that both ends of an organic material, at least one of which has a conjugated double bond, and an exterior metal sheet are fixed with a tetraelectric adhesive. 2. Claims 7) A laminated secondary battery according to item 1, characterized in that the conductive adhesive is an epoxy resin mixed with metal powder or carbon powder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58194187A JPS6086777A (en) | 1983-10-19 | 1983-10-19 | Layer-built secondary battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58194187A JPS6086777A (en) | 1983-10-19 | 1983-10-19 | Layer-built secondary battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6086777A true JPS6086777A (en) | 1985-05-16 |
Family
ID=16320383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58194187A Pending JPS6086777A (en) | 1983-10-19 | 1983-10-19 | Layer-built secondary battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6086777A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011181531A (en) * | 2011-06-24 | 2011-09-15 | Panasonic Corp | Energy device and method of manufacturing the same |
CN102470980A (en) * | 2009-09-28 | 2012-05-23 | 夏普株式会社 | Storage tray |
-
1983
- 1983-10-19 JP JP58194187A patent/JPS6086777A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102470980A (en) * | 2009-09-28 | 2012-05-23 | 夏普株式会社 | Storage tray |
JP2011181531A (en) * | 2011-06-24 | 2011-09-15 | Panasonic Corp | Energy device and method of manufacturing the same |
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